Sela estimated the sum of 76.6, 25.5, and 10.87 by rounding each number to the nearest whole.

Question

What was Sela's estimate and what is the actual sum of the numbers?

Enter your answers in the boxes.

Sela estimated the sum to be
. The actual sum is
.

Answer 1

To find Sela's estimate, we need to round each of the numbers to the nearest whole number.

1. Rounding the numbers:
   • 76.6 rounds to 77.
   • 25.5 rounds to 26.
   • 10.87 rounds to 11.

Now, we can calculate Sela's estimated sum:

\[ 77 + 26 + 11 = 114 \]

So, Sela estimated the sum to be 114.

Now, let's calculate the actual sum of the numbers:

\[ 76.6 + 25.5 + 10.87 \]

1. Calculating the sum step by step:

   • \(76.6 + 25.5 = 102.1\)
   • \(102.1 + 10.87 = 112.97\)

Thus, the actual sum is 112.97.

Putting it all together, we have:

Sela estimated the sum to be 114. The actual sum is 112.97.